[quote name='"pure1"']drgreener is correct, phos def [/quote] It seems based on the Chart will be Potassium instead of Phosphorus.
I had this before and it was phosphorus for me when i was about 3 to 4 weeks in flower. If i remember corectly i just upped my bloom nutes which pretty much solved it
Thanks for the help I upped my bloom nutes and they are looking much better. And the chart is awesome thanks